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  1. E

    P0052 - 5.7 - heater circuit high - new sensors

    Still works.
  2. E

    Rad. over flow tank

    Anyone know what grommet to use for that hole?
  3. E

    P0052 - 5.7 - heater circuit high - new sensors

    In case anyone ever has this problem and finds this post. Truck is still running fine with 1 O2 heater wire connected in parallel to a wire from the other one behind it because the computer has a problem and doesn't send power to the O2.
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    P0052 - 5.7 - heater circuit high - new sensors

    Thanks. I went through every ground that I could find. It was odd how the rear sensor worked but not the front because it's the same wire going to ground. I made extension wires for my meter and ohmed the wires, they were all good with low ohms. I even added a light bulb to load test and from...
  5. E

    P0052 - 5.7 - heater circuit high - new sensors

    Edit button is missing so I'll update here. This was my dad's truck. The truck started acting up were it would miss, backfire and lose power. Took it to a mechanic. They replaced the 02 sensors. truck ran fine for a week and symptoms came back. Noticed that if I reset the battery, truck would...
  6. E

    P0052 - 5.7 - heater circuit high - new sensors

    I'm trying to figure out why I keep getting the P0052 HO2S Heater Circuit High (Bank 2, Sensor 1) I replaced both bank 2 sensors with NGK/NGT replacements. I was getting circuit high for both but now only sensor 1 is giving the code. I cleaned all grounds under the hood. I ohmed out the...

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